Set 12: Linear Functions (Advanced)

Choice A is correct. Choice A is the correct answer. Find the slope from the intercepts. 1. Points: $(0, 3)$ and $(-3, 0)$. 2. Slope: $m = \frac{0 - 3}{-3 - 0} = \frac{-3}{-3} = 1$. 3. Y-intercept: $b = 3$. 4. Equation: $y = 1 x + 3$, or $y = x + 3$. Strategic Tip: A line crossing at $(a, 0)$ and $(0, a)$ always has a slope of 1 if signs match, or -1 if signs differ. Choice B is incorrect because it has a negative slope. Choice C is incorrect because it has the wrong y-intercept. Choice D is incorrect because it has the wrong slope.